text: /*
   * befs.h
   *
   * Copyright (C) 2001-2002 Will Dyson <will_dyson@pobox.com>
   * Copyright (C) 1999 Makoto Kato (m_kato@ga2.so-net.ne.jp)
   */
  
  #ifndef _LINUX_BEFS_H
  #define _LINUX_BEFS_H
  
  #include "befs_fs_types.h"
  
  /* used in debug.c */
  #define BEFS_VERSION "0.9.3"
  
  
  typedef u64 befs_blocknr_t;
  /*
   * BeFS in memory structures
   */
  
  struct befs_mount_options {
  	kgid_t gid;
  	kuid_t uid;
  	int use_gid;
  	int use_uid;
  	int debug;
  	char *iocharset;
  };
  
  struct befs_sb_info {
  	u32 magic1;
  	u32 block_size;
  	u32 block_shift;
  	int byte_order;
  	befs_off_t num_blocks;
  	befs_off_t used_blocks;
  	u32 inode_size;
  	u32 magic2;
  
  	/* Allocation group information */
  	u32 blocks_per_ag;
  	u32 ag_shift;
  	u32 num_ags;
  
  	/* jornal log entry */
  	befs_block_run log_blocks;
  	befs_off_t log_start;
  	befs_off_t log_end;
  
  	befs_inode_addr root_dir;
  	befs_inode_addr indices;
  	u32 magic3;
  
  	struct befs_mount_options mount_opts;
  	struct nls_table *nls;
  };
  
  struct befs_inode_info {
  	u32 i_flags;
  	u32 i_type;
  
  	befs_inode_addr i_inode_num;
  	befs_inode_addr i_parent;
  	befs_inode_addr i_attribute;
  
  	union {
  		befs_data_stream ds;
  		char symlink[BEFS_SYMLINK_LEN];
  	} i_data;
  
  	struct inode vfs_inode;
  };
  
  enum befs_err {
  	BEFS_OK,
  	BEFS_ERR,
  	BEFS_BAD_INODE,
  	BEFS_BT_END,
  	BEFS_BT_EMPTY,
  	BEFS_BT_MATCH,
  	BEFS_BT_PARMATCH,
  	BEFS_BT_NOT_FOUND
  };
  
  
  /****************************/
  /* debug.c */
  __printf(2, 3)
  void befs_error(const struct super_block *sb, const char *fmt, ...);
  __printf(2, 3)
  void befs_warning(const struct super_block *sb, const char *fmt, ...);
  __printf(2, 3)
  void befs_debug(const struct super_block *sb, const char *fmt, ...);
  
  void befs_dump_super_block(const struct super_block *sb, befs_super_block *);
  void befs_dump_inode(const struct super_block *sb, befs_inode *);
  void befs_dump_index_entry(const struct super_block *sb, befs_disk_btree_super *);
  void befs_dump_index_node(const struct super_block *sb, befs_btree_nodehead *);
  /****************************/
  
  
  /* Gets a pointer to the private portion of the super_block
   * structure from the public part
   */
  static inline struct befs_sb_info *
  BEFS_SB(const struct super_block *super)
  {
  	return (struct befs_sb_info *) super->s_fs_info;
  }
  
  static inline struct befs_inode_info *
  BEFS_I(const struct inode *inode)
  {
  	return container_of(inode, struct befs_inode_info, vfs_inode);
  }
  
  static inline befs_blocknr_t
  iaddr2blockno(struct super_block *sb, befs_inode_addr * iaddr)
  {
  	return ((iaddr->allocation_group << BEFS_SB(sb)->ag_shift) +
  		iaddr->start);
  }
  
  static inline befs_inode_addr
  blockno2iaddr(struct super_block *sb, befs_blocknr_t blockno)
  {
  	befs_inode_addr iaddr;
  	iaddr.allocation_group = blockno >> BEFS_SB(sb)->ag_shift;
  	iaddr.start =
  	    blockno - (iaddr.allocation_group << BEFS_SB(sb)->ag_shift);
  	iaddr.len = 1;
  
  	return iaddr;
  }
  
  static inline unsigned int
  befs_iaddrs_per_block(struct super_block *sb)
  {
  	return BEFS_SB(sb)->block_size / sizeof (befs_disk_inode_addr);
  }
  
  static inline int
  befs_iaddr_is_empty(befs_inode_addr * iaddr)
  {
  	return (!iaddr->allocation_group) && (!iaddr->start) && (!iaddr->len);
  }
  
  static inline size_t
  befs_brun_size(struct super_block *sb, befs_block_run run)
  {
  	return BEFS_SB(sb)->block_size * run.len;
  }
  
  #include "endian.h"
  
  #endif				/* _LINUX_BEFS_H */
  